QT4-15A Hydraulic Block Making Machine – Full Range

Configured as one matched system — the QT4-15A arrives with pallet feeder, brick conveyor, and sweeper already integrated, so the press never waits on manually-fed stations.

Technical Specifications

Application Suitability

What a Cycle Time Figure Actually Means for Your Daily Output

A molding cycle quoted alone tells you nothing until it is tied to a specific block format and curing schedule.

Many quotations list a single cycles-per-hour number without stating which block size that figure assumes. In practice, a 400×200×200 mm hollow block and a 240×115×53 mm solid brick demand different vibration durations, hydraulic dwell times, and demolding care. I have seen buyers in Latin America compare two machines on cycle time alone, only to find after arrival that their primary product ran noticeably slower than the quoted figure suggested [NEED_CITE: block format influence on actual cycle time]. The QT4-15A capacity figures above are each stated against a defined block dimension, so daily projections start from real numbers rather than a catalogue default.

Where This Tier Sits in the Full Machine Lineup

The SHIYUE range spans mobile egg-laying units for on-site work, semi-automatic presses for small workshops, and high-capacity fully automatic lines with stacking and cubing. The QT4-15A occupies the medium-production hydraulic tier, pairing PLC control with a pallet feeder and brick conveyor so that a first-time plant owner gets a complete block making machine manufacturer package without sourcing each station separately. For buyers moving beyond manual pallet handling but not yet ready for a fully automatic cubing line, this is the step that removes the most repetitive labour while keeping the investment moderate.

Matching the Machine to the Blocks Your Market Actually Buys

A medium-tier press earns its place only when the mould inventory covers the formats your distributors and contractors order repeatedly. The QT4-15A handles hollow blocks, solid bricks, pavers, and kerbstones through mould changes on the same pallet size. The 850×550×25 mm pallet was selected to match the press footprint and the downstream conveyor width, meaning a buyer does not need a second pallet pool when switching from hollow block to paver runs. [NEED_CITE: pallet standardization across block formats reduces curing area complexity]

Reading the Specs That Shape Real Production

Vibration force and hydraulic pressure work together to compact the mix; the 40–50 kN vibration force at 4,600 r/min is paired with a high-pressure hydraulic station to achieve consistent density across the mould cavity. The 15–25 second cycle window reflects the range from thin solid bricks to taller hollow blocks where extra vibration is needed for full compaction. Total installed power of 18.45 kW covers the press, hydraulic pump, and JQ350 mixer running together, which matters when sizing the transformer and dedicated circuit at the plant. The PLC control system stores cycle parameters per mould, so an operator selects the block format and the press recalls the correct vibration duration and hydraulic sequence without manual dial adjustments.

The Cost of Specifying Pallets After the Machine Arrives

When pallet size is chosen without checking the buyer’s existing curing racks and forklift fork spacing, the result is double handling from day one. Blocks come off the conveyor onto pallets that do not stack in the curing chamber, forcing workers to transfer them by hand. I have watched plants lose a full shift per week simply re-stacking output because the pallet dimensions were never confirmed against the site [NEED_CITE: pallet and curing rack compatibility in block production]. The 850×550×25 mm pallet on the QT4-15A should be checked against your curing rack slot width and forklift tine spacing before the order is finalized.

Why Source This Line Here

Block machinery is the single focus, so the press, moulds, pallets, and conveyor are specified as one matched system. Configuration is set against the buyer’s local aggregate and target block format, not pulled from a default catalogue page. Mould design covers the formats the buyer’s market sells, including custom drawings when a kerbstone profile differs from the standard range. Automation level is selectable — a buyer can start with the pallet feeder and conveyor package and add automatic stacking later. Installation support includes operator training on the PLC format library and hydraulic pressure calibration.

Documentation & Verification

• Line layout drawing showing QT4-15A station spacing and pallet flow path
• Capacity calculation sheet stating output per block format with cycle assumptions
• Hydraulic and electrical schematic matching the shipped 18.45 kW configuration
• Factory test record on buyer’s specified hollow block and solid brick moulds
• Pallet specification sheet with 850×550×25 mm dimensions and load rating
• PLC display language confirmation signed off before production begins

Installation, Commissioning & Support

• Foundation pad sized to 7,100 mm length plus conveyor run-up area
• Dedicated circuit rated for 18.45 kW total draw with voltage and frequency confirmed pre-shipment
• Machine arrives as a complete line; pallet feeder and sweeper bolt to the press frame on site
• First-run commissioning covers PLC parameter entry for each mould in the format list
• Operator training on mould change procedure and hydraulic pressure adjustment per mix
• Wear parts list with hydraulic seal and vibration motor brush intervals defined

Preparing Your Inquiry

To size this tier against the rest of the range, share the block formats your market orders most, the daily volume you need for each, and the aggregate sources available locally. Include your site voltage, frequency, and preferred PLC language so the control system ships ready. If you already have curing racks or forklifts, send their dimensions so the pallet specification is locked before production.

Frequently Asked Questions

Q: Where does the QT4-15A sit compared to semi-automatic and fully automatic options?
A: It bridges the gap between semi-automatic presses that rely on manual pallet handling and high-capacity lines with automatic stacking and cubing. The included pallet feeder and brick conveyor remove the most labour-intensive steps while keeping the investment moderate, making it suitable for plants targeting medium daily volumes across several block formats.

Q: What block formats can this machine produce and what is the realistic output for each?
A: The press runs hollow blocks at 400×200×200 mm (408 pcs/hr), 400×150×200 mm (510 pcs/hr), and solid bricks at 240×115×53 mm (2,100 pcs/hr). Each figure is tied to that specific format; paver and kerbstone cycle times fall within the 15–25 second window depending on mould depth and mix design.

Q: What supporting equipment comes with the machine versus what I source separately?
A: The package includes the hydraulic station, PLC control system, pallet feeder, brick conveyor, and block sweeper. The JQ350 mixer is part of the line. Curing racks, forklifts, and raw material silos are typically buyer-supplied and should be dimensioned to match the 850×550 mm pallet.

Q: How do voltage and control language work for different export markets?
A: Voltage and frequency are confirmed during the sales process to match the buyer’s local supply. The PLC display language is also locked before production so operators can read cycle parameters and fault codes in their working language from the first day of commissioning.

Q: How does plant footprint and investment compare across the SHIYUE range?
A: The QT4-15A at roughly 7.1 m length plus conveyor run-out needs a moderate bay. Entry-level mobile machines require less fixed infrastructure but lower output, while fully automatic lines with cubing need larger floor space and higher capital. This tier balances footprint and throughput for growing plants.